解方程组m-(n+2)/2=2,2m+3n=12
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解方程组m-(n+2)/2=2,2m+3n=12
![解方程组m-(n+2)/2=2,2m+3n=12](/uploads/image/z/44949-21-9.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%E7%BB%84m-%28n%2B2%29%2F2%3D2%2C2m%2B3n%3D12)
m-(n+2)/2=2……①
2m+3n=12……②
①×2,得:2m-(n+2)=4……③
②-③,得:3n+(n+2)=8
解得:n=3/2
将n=3/2代入②,解得:m=15/4
2m+3n=12……②
①×2,得:2m-(n+2)=4……③
②-③,得:3n+(n+2)=8
解得:n=3/2
将n=3/2代入②,解得:m=15/4